Bump version to 4.5.4.

Author: plusvic

setup.py

@@ -393,7 +393,7 @@ def run(self):
 
 setup(
     name='yara-python',
-    version='4.5.2',
+    version='4.5.4',
     description='Python interface for YARA',
     long_description=readme,
     long_description_content_type='text/markdown',